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  1. AU="Srinivas Ramishetti"
  2. AU="Chen, Yaoqing"
  3. AU="Cotton, Anitria"
  4. AU="Bayer, Adrian E."
  5. AU="Boerke, A"
  6. AU="Brown, Guy C."
  7. AU=Ford Caleb A.
  8. AU="Hussain, Muhammad Afaq"
  9. AU="Werner Henkel"
  10. AU=Zellweger M J
  11. AU="Marasco, Michelangelo"
  12. AU="Landa-Moreno, Cinthia"
  13. AU="Kuntner, Matjaz"
  14. AU="Lemes, Robertha Mariana Rodrigues"
  15. AU="Riccioni, M E"
  16. AU="Traer, Colin J"
  17. AU="Cao, Xuejie"
  18. AU="Chen, Zishuo"
  19. AU="Kalachikov, Sergey"
  20. AU="Das, Tilak"
  21. AU="Bessat, Cécile"
  22. AU="Galina Velikova"
  23. AU="Greene, Sharrell"
  24. AU="Chen, Kallie J"
  25. AU="Schwab, Jörg O."
  26. AU="Ke Chen"
  27. AU="Hewei Liang"
  28. AU="Abreu, Cristina"
  29. AU="Mamani Ortiz, Yercin"
  30. AU="Castro, Lucíola de Fátima Albuquerque Almeida Peixoto"
  31. AU="Šimůnek, Tomáš"
  32. AU="Ong, Lizhen"
  33. AU="Chai, Chaoqing"
  34. AU="Maheswaran Kesavan"
  35. AU="Mehta, Mrunal"
  36. AU=Paredes Sergio D
  37. AU=Ghosh Nilanjan AU=Ghosh Nilanjan
  38. AU="Hofmann, Alexander"
  39. AU="Radici, Marco"
  40. AU="Noro, Fabrizia"
  41. AU="Wang, Jianzhao"
  42. AU="Divya Jeyam"
  43. AU="Wolf, Lisette"
  44. AU="Marjanovic, Nemanja Despot"
  45. AU="Jitxin, Lim"

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  1. Artikel ; Online: A Combinatorial Library of Lipid Nanoparticles for Cell Type‐Specific mRNA Delivery

    Gonna Somu Naidu / Seok‐Beom Yong / Srinivas Ramishetti / Riccardo Rampado / Preeti Sharma / Assaf Ezra / Meir Goldsmith / Inbal Hazan‐Halevy / Sushmita Chatterjee / Anjaiah Aitha / Dan Peer

    Advanced Science, Vol 10, Iss 19, Pp n/a-n/a (2023)

    2023  

    Abstract: Abstract Ionizable lipid‐based nanoparticles (LNPs) are the most advanced non‐viral drug delivery systems for RNA therapeutics and vaccines. However, cell type‐specific, extrahepatic mRNA delivery is still a major hurdle, hampering the development of ... ...

    Abstract Abstract Ionizable lipid‐based nanoparticles (LNPs) are the most advanced non‐viral drug delivery systems for RNA therapeutics and vaccines. However, cell type‐specific, extrahepatic mRNA delivery is still a major hurdle, hampering the development of novel therapeutic modalities. Herein, a novel ionizable lipid library is synthesized by modifying hydrophobic tail chains and linkers. Combined with other helper lipids and utilizing a microfluidic mixing approach, stable LNPs are formed. Using Luciferase‐mRNA, mCherry mRNA, and Cre mRNA together with a TdTomato animal model, superior lipids forming LNPs for potent cell‐type specific mRNA delivery are identified. In vitro assays concluded that combining branched ester tail chains with hydroxylamine linker negatively affects mRNA delivery efficiency. In vivo studies identify Lipid 23 as a liver‐trophic, superior mRNA delivery lipid and Lipid 16 as a potent cell type‐specific ionizable lipid for the CD11bhi macrophage population without an additional targeting moiety. Finally, in vivo mRNA delivery efficiency and toxicity of these LNPs are compared with SM‐102‐based LNP (Moderna's LNP formulation) and are shown to be cell‐specific compared to SM‐102‐based LNPs. Overall, this study suggests that a structural combination of tail and linker can drive a novel functionality of LNPs in vivo.
    Schlagwörter cell type‐specific mRNA delivery ; combinatorial lipid nanoparticles ; mRNA delivery ; Science ; Q
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2023-07-01T00:00:00Z
    Verlag Wiley
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  2. Artikel ; Online: Cell specific delivery of modified mRNA expressing therapeutic proteins to leukocytes

    Nuphar Veiga / Meir Goldsmith / Yasmin Granot / Daniel Rosenblum / Niels Dammes / Ranit Kedmi / Srinivas Ramishetti / Dan Peer

    Nature Communications, Vol 9, Iss 1, Pp 1-

    2018  Band 9

    Abstract: Therapeutic alteration of protein expression using modified mRNA is limited by immunogenicity and instability in vivo. Here the authors use antibody-coated lipid nanoparticles to deliver mRNA to leukocytes and drive expression of anti-inflammatory ... ...

    Abstract Therapeutic alteration of protein expression using modified mRNA is limited by immunogenicity and instability in vivo. Here the authors use antibody-coated lipid nanoparticles to deliver mRNA to leukocytes and drive expression of anti-inflammatory cytokines in an inflammatory bowel disease mouse model.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2018-10-01T00:00:00Z
    Verlag Nature Publishing Group
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  3. Artikel ; Online: Cell specific delivery of modified mRNA expressing therapeutic proteins to leukocytes

    Nuphar Veiga / Meir Goldsmith / Yasmin Granot / Daniel Rosenblum / Niels Dammes / Ranit Kedmi / Srinivas Ramishetti / Dan Peer

    Nature Communications, Vol 9, Iss 1, Pp 1-

    2018  Band 9

    Abstract: Therapeutic alteration of protein expression using modified mRNA is limited by immunogenicity and instability in vivo. Here the authors use antibody-coated lipid nanoparticles to deliver mRNA to leukocytes and drive expression of anti-inflammatory ... ...

    Abstract Therapeutic alteration of protein expression using modified mRNA is limited by immunogenicity and instability in vivo. Here the authors use antibody-coated lipid nanoparticles to deliver mRNA to leukocytes and drive expression of anti-inflammatory cytokines in an inflammatory bowel disease mouse model.
    Schlagwörter Science ; Q
    Sprache Englisch
    Erscheinungsdatum 2018-10-01T00:00:00Z
    Verlag Nature Portfolio
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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  4. Artikel ; Online: Design of SARS-CoV-2 RBD mRNA Vaccine Using Novel Ionizable Lipids

    Elia, Uri / Srinivas, Ramishetti / Dammes, Niels / Bar-Haim, Erez / Naidu, Gonna Somu / Makdasi, Efi / Cohen, Ofer / Peer, Dan

    bioRxiv

    Abstract: The novel coronavirus SARS-CoV-2 has been identified as the causal agent of COVID-19 and stands at the center of the current global human pandemic, with death toll exceeding one million. The urgent need for a vaccine has led to the development of various ...

    Abstract The novel coronavirus SARS-CoV-2 has been identified as the causal agent of COVID-19 and stands at the center of the current global human pandemic, with death toll exceeding one million. The urgent need for a vaccine has led to the development of various immunization approaches. mRNA vaccines represent a cell-free, simple and rapid platform for immunization, and therefore have been employed in recent studies towards the development of a SARS-CoV-2 vaccine. In this study, we present the design of a lipid nanoparticles (LNP)-encapsulated receptor binding domain (RBD) mRNA vaccine. Several ionizable lipids have been evaluated in vivo in a luciferase mRNA reporter assay, and two leading LNPs formulation have been chosen for the subsequent RBD mRNA vaccine experiment. Intramuscular administration of LNP RBD mRNA elicited robust humoral response, high level of neutralizing antibodies and a Th1-biased cellular response in BALB/c mice. These novel lipids open new avenues for mRNA vaccines in general and for a COVID19 vaccine in particular.
    Schlagwörter covid19
    Sprache Englisch
    Erscheinungsdatum 2020-10-15
    Verlag Cold Spring Harbor Laboratory
    Dokumenttyp Artikel ; Online
    DOI 10.1101/2020.10.15.341537
    Datenquelle COVID19

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  5. Artikel ; Online: Theranostic etoposide phosphate/indium nanoparticles for cancer therapy and imaging.

    Srinivas, Ramishetti / Satterlee, Andrew / Wang, Yuhua / Zhang, Yuan / Wang, Yongjun / Huang, Leaf

    Nanoscale

    2015  Band 7, Heft 44, Seite(n) 18542–18551

    Abstract: Etoposide phosphate (EP), a water-soluble anticancer prodrug, is widely used for treatment of many cancers. After administration it is rapidly converted to etoposide, its parent compound, which exhibits anticancer activity. Difficulty in parenteral ... ...

    Abstract Etoposide phosphate (EP), a water-soluble anticancer prodrug, is widely used for treatment of many cancers. After administration it is rapidly converted to etoposide, its parent compound, which exhibits anticancer activity. Difficulty in parenteral administration necessitates the development of a suitable nanoparticle delivery system for EP. Here we have used indium both as a carrier to deliver etoposide phosphate to tumor cells and as a SPECT imaging agent through incorporation of (111)In. Etoposide phosphate was successfully encapsulated together with indium in nanoparticles, and exhibited dose dependent cytotoxicity and induction of apoptosis in cultured H460 cancer cells via G2/M cell cycle arrest. In a mouse xenograft lung cancer model, etoposide phosphate/indium nanoparticles induce tumor cell apoptosis, leading to significant enhancement of tumor growth inhibition compared to the free drug.
    Mesh-Begriff(e) Animals ; Carcinoma, Non-Small-Cell Lung/drug therapy ; Carcinoma, Non-Small-Cell Lung/metabolism ; Carcinoma, Non-Small-Cell Lung/pathology ; Drug Carriers ; Etoposide/analogs & derivatives ; Etoposide/chemistry ; Etoposide/pharmacology ; G2 Phase Cell Cycle Checkpoints/drug effects ; Humans ; Indium/chemistry ; Indium/pharmacology ; Lung Neoplasms/drug therapy ; Lung Neoplasms/metabolism ; Lung Neoplasms/pathology ; M Phase Cell Cycle Checkpoints/drug effects ; Mice ; Mice, Nude ; Nanoparticles/chemistry ; Organophosphorus Compounds/chemistry ; Organophosphorus Compounds/pharmacology ; Theranostic Nanomedicine/methods ; Xenograft Model Antitumor Assays
    Chemische Substanzen Drug Carriers ; Organophosphorus Compounds ; Indium (045A6V3VFX) ; etoposide phosphate (528XYJ8L1N) ; Etoposide (6PLQ3CP4P3)
    Sprache Englisch
    Erscheinungsdatum 2015-10-22
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2515664-0
    ISSN 2040-3372 ; 2040-3364
    ISSN (online) 2040-3372
    ISSN 2040-3364
    DOI 10.1039/c5nr04509f
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  6. Artikel: Cationic amphiphiles: promising carriers of genetic materials in gene therapy

    Srinivas, Ramishetti / Samanta, Sanjoy / Chaudhuri, Arabinda

    Chemical Society reviews. 2009 Nov. 17, v. 38, no. 12

    2009  

    Abstract: The clinical success of gene therapy critically depends on the use of efficient and safe gene delivery reagents. The present tutorial review is aimed at inspiring young researchers and students to take up the unsolved challenges in using cationic ... ...

    Abstract The clinical success of gene therapy critically depends on the use of efficient and safe gene delivery reagents. The present tutorial review is aimed at inspiring young researchers and students to take up the unsolved challenges in using cationic amphiphiles as safe gene transfer reagents. The review highlights important structure–activity studies in the field to date including the use of cationic amphiphiles for receptor specific targeted gene therapy and for delivery of siRNAs in the emerging field of RNA interference.
    Schlagwörter RNA interference ; gene therapy ; gene transfer ; small interfering RNA ; surfactants
    Sprache Englisch
    Erscheinungsverlauf 2009-1117
    Umfang p. 3326-3338.
    Erscheinungsort The Royal Society of Chemistry
    Dokumenttyp Artikel
    ZDB-ID 1472875-8
    ISSN 1460-4744 ; 0306-0012
    ISSN (online) 1460-4744
    ISSN 0306-0012
    DOI 10.1039/b813869a
    Datenquelle NAL Katalog (AGRICOLA)

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  7. Artikel ; Online: Cationic amphiphiles: promising carriers of genetic materials in gene therapy.

    Srinivas, Ramishetti / Samanta, Sanjoy / Chaudhuri, Arabinda

    Chemical Society reviews

    2009  Band 38, Heft 12, Seite(n) 3326–3338

    Abstract: The clinical success of gene therapy critically depends on the use of efficient and safe gene delivery reagents. The present tutorial review is aimed at inspiring young researchers and students to take up the unsolved challenges in using cationic ... ...

    Abstract The clinical success of gene therapy critically depends on the use of efficient and safe gene delivery reagents. The present tutorial review is aimed at inspiring young researchers and students to take up the unsolved challenges in using cationic amphiphiles as safe gene transfer reagents. The review highlights important structure-activity studies in the field to date including the use of cationic amphiphiles for receptor specific targeted gene therapy and for delivery of siRNAs in the emerging field of RNA interference.
    Mesh-Begriff(e) Animals ; Cations/chemistry ; Gene Transfer Techniques ; Genetic Therapy/methods ; Genetic Vectors/chemistry ; Humans
    Chemische Substanzen Cations
    Sprache Englisch
    Erscheinungsdatum 2009-12
    Erscheinungsland England
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1472875-8
    ISSN 1460-4744 ; 0306-0012
    ISSN (online) 1460-4744
    ISSN 0306-0012
    DOI 10.1039/b813869a
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  8. Artikel: A long-lasting dendritic cell DNA vaccination system using lysinylated amphiphiles with mannose-mimicking head-groups

    Srinivas, Ramishetti / Garu, Arup / Moku, Gopikrishna / Agawane, Sachin B / Chaudhuri, Arabinda

    Biomaterials. 2012 Sept., v. 33, no. 26

    2012  

    Abstract: Dendritic cells (DCs) pulsed/transduced with tumor-associated or viral antigens have shown promise in combating cancer and infectious diseases. Despite significant progresses, development of a biologically safe DC-based genetic immunization (DNA ... ...

    Abstract Dendritic cells (DCs) pulsed/transduced with tumor-associated or viral antigens have shown promise in combating cancer and infectious diseases. Despite significant progresses, development of a biologically safe DC-based genetic immunization (DNA vaccination) system capable of providing truly long-lasting protective immunity remains a significant scientific challenge. Here we show that immunization with autologous DCs pre-transfected with electrostatic complexes (lipoplexes) of a plasmid DNA encoding melanoma tumor associated antigen and liposomes of two lysinylated cationic amphiphiles with mannose-mimicking quinic and shikimic acid head-groups provides long-lasting (300 days post tumor challenge) protective immunity with significant memory response (more than six months after the second tumor challenge) in more than 80% immunized mice. The presently described non-viral ex vivo DC-transfection system may be exploited in inducing long-lasting immune response in DC-based genetic immunization.
    Schlagwörter dendritic cells ; immune response ; infectious diseases ; melanoma ; mice ; plasmids ; shikimic acid ; vaccination ; viral antigens
    Sprache Englisch
    Erscheinungsverlauf 2012-09
    Umfang p. 6220-6229.
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel
    ZDB-ID 603079-8
    ISSN 0142-9612
    ISSN 0142-9612
    DOI 10.1016/j.biomaterials.2012.05.006
    Datenquelle NAL Katalog (AGRICOLA)

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  9. Artikel ; Online: A long-lasting dendritic cell DNA vaccination system using lysinylated amphiphiles with mannose-mimicking head-groups.

    Srinivas, Ramishetti / Garu, Arup / Moku, Gopikrishna / Agawane, Sachin B / Chaudhuri, Arabinda

    Biomaterials

    2012  Band 33, Heft 26, Seite(n) 6220–6229

    Abstract: Dendritic cells (DCs) pulsed/transduced with tumor-associated or viral antigens have shown promise in combating cancer and infectious diseases. Despite significant progresses, development of a biologically safe DC-based genetic immunization (DNA ... ...

    Abstract Dendritic cells (DCs) pulsed/transduced with tumor-associated or viral antigens have shown promise in combating cancer and infectious diseases. Despite significant progresses, development of a biologically safe DC-based genetic immunization (DNA vaccination) system capable of providing truly long-lasting protective immunity remains a significant scientific challenge. Here we show that immunization with autologous DCs pre-transfected with electrostatic complexes (lipoplexes) of a plasmid DNA encoding melanoma tumor associated antigen and liposomes of two lysinylated cationic amphiphiles with mannose-mimicking quinic and shikimic acid head-groups provides long-lasting (300 days post tumor challenge) protective immunity with significant memory response (more than six months after the second tumor challenge) in more than 80% immunized mice. The presently described non-viral ex vivo DC-transfection system may be exploited in inducing long-lasting immune response in DC-based genetic immunization.
    Mesh-Begriff(e) Animals ; Antigen-Presenting Cells/immunology ; Antigen-Presenting Cells/metabolism ; Cell Line, Tumor ; Cells, Cultured ; Dendritic Cells/immunology ; Dendritic Cells/metabolism ; Flow Cytometry ; Interferon-gamma/metabolism ; Interleukin-4/metabolism ; Male ; Mannose/chemistry ; Melanoma/immunology ; Melanoma/metabolism ; Melanoma/prevention & control ; Mice ; Mice, Inbred C57BL ; Transfection/methods ; Vaccines, DNA/chemistry ; Vaccines, DNA/therapeutic use
    Chemische Substanzen Vaccines, DNA ; Interleukin-4 (207137-56-2) ; Interferon-gamma (82115-62-6) ; Mannose (PHA4727WTP)
    Sprache Englisch
    Erscheinungsdatum 2012-09
    Erscheinungsland Netherlands
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603079-8
    ISSN 1878-5905 ; 0142-9612
    ISSN (online) 1878-5905
    ISSN 0142-9612
    DOI 10.1016/j.biomaterials.2012.05.006
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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  10. Artikel ; Online: Cationic amphiphile with shikimic acid headgroup shows more systemic promise than its mannosyl analogue as DNA vaccine carrier in dendritic cell based genetic immunization.

    Srinivas, Ramishetti / Karmali, Priya P / Pramanik, Dipankar / Garu, Arup / Mahidhar, Yenugonda Venkata / Majeti, Bharat K / Ramakrishna, Sistla / Srinivas, Gunda / Chaudhuri, Arabinda

    Journal of medicinal chemistry

    2010  Band 53, Heft 3, Seite(n) 1387–1391

    Abstract: Mannosylated cationic vectors have been previously used for delivering DNA vaccines to antigen presenting cells (APCs) via mannose receptors expressed on the cell surface of APCs. Here we show that cationic amphiphiles containing mannose-mimicking quinic ...

    Abstract Mannosylated cationic vectors have been previously used for delivering DNA vaccines to antigen presenting cells (APCs) via mannose receptors expressed on the cell surface of APCs. Here we show that cationic amphiphiles containing mannose-mimicking quinic acid and shikimic acid headgroups deliver genes to APCs via mannose receptor. Cationic amphiphile with shikimic acid headgroup was more efficacious than its mannosyl counterpart in combating mouse tumor growth by dendritic cell (the most professional APC) based genetic immunization.
    Mesh-Begriff(e) Animals ; Antigen-Presenting Cells ; Cations/chemistry ; Cells, Cultured ; Dendritic Cells/metabolism ; Enzyme-Linked Immunosorbent Assay ; Female ; Immunization ; Lectins, C-Type/metabolism ; Liposomes ; Mannose/chemical synthesis ; Mannose/chemistry ; Mannose/pharmacology ; Mannose-Binding Lectins/metabolism ; Mass Spectrometry ; Melanoma, Experimental/drug therapy ; Mice ; Mice, Inbred C57BL ; NIH 3T3 Cells ; Receptors, Cell Surface/metabolism ; Shikimic Acid/chemistry ; Vaccines, DNA/administration & dosage
    Chemische Substanzen Cations ; Lectins, C-Type ; Liposomes ; Mannose-Binding Lectins ; Receptors, Cell Surface ; Vaccines, DNA ; mannose receptor ; Shikimic Acid (29MS2WI2NU) ; Mannose (PHA4727WTP)
    Sprache Englisch
    Erscheinungsdatum 2010-02-11
    Erscheinungsland United States
    Dokumenttyp Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218133-2
    ISSN 1520-4804 ; 0022-2623
    ISSN (online) 1520-4804
    ISSN 0022-2623
    DOI 10.1021/jm901295s
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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